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LUYSSAERT_CARBON_FLUX Global Forest Ecosystem Structure and Function Data For Carbon Balance Research LUYSSAERT, S.; INGLIMA, I.; JUNG, M. Global Forest Ecosystem Structure and Function Data For Carbon Balance Research 2009 Oak Ridge, Tennessee, U.S.A. Oak Ridge National Laboratory Distributed Active Archive Center Online Files doi:10.3334/ORNLDAAC/949 949

ABSTRACT: A comprehensive global database has been assembled to quantify CO2 fluxes and pathways across different levels of integration (from photosynthesis up to net ecosystem production) in forest ecosystems. The database fills an important gap for model calibration, model validation, and hypothesis testing at global and regional scales. The database archive includes: a Microsoft Office Access Database; data files for all tables in the database; query outputs from the database; and SQL script file for re-creating the database from the tables. The database is structured by site (i.e., a forest or stand of known geographical location, biome, species composition, and management regime). It contains carbon budget variables (fluxes and stocks), ecosystem traits (standing biomass, leaf area index, age), and ancillary information (management regime, climate, soil characteristics) for 529 sites from eight forest biomes. Data entries originated from peer-reviewed literature and personal communications with researchers involved in Fluxnet. Flux estimates were included in the database when they were based on direct measurements (e.g., tower-based eddy covariance system measurements), derived from single or multiple direct measurements, or modeled. Stand description was based on observed values, and climatic description was based on the CRU data set and ORCHIDEE model output. Uncertainty for each carbon balance component in the database was estimated in a uniformed way by expert judgment. Robustness of CO2 balances was tested, and closure terms were introduced as a numerical way to approach data quality and flux uncertainty at the biome level.

1897-01-01 2006-12-31 COMPLETE -42.87 67.36 -159.5 172.75 TERRAIN ELEVATION|| TERRAIN ELEVATION ESIP Earth Science Information Partners Program EOSDIS Earth Observing System Data Information System TECHNICAL CONTACT ORNL DAAC User Services ORNL DAAC USER SERVICES OFFICE OAK RIDGE NATIONAL LABORATORY OAK RIDGE, TENNESSEE 37831 USA DIF AUTHOR ORNL DAAC User Services ornldaac@ornl.gov (865) 241-3952 (865) 574-4665

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Oak Ridge Tennessee 37831-6407 USA EARTH SCIENCE AGRICULTURE FOREST SCIENCE FOREST MANAGEMENT EARTH SCIENCE ATMOSPHERE ATMOSPHERIC RADIATION LONGWAVE RADIATION EARTH SCIENCE ATMOSPHERE ATMOSPHERIC RADIATION SOLAR RADIATION EARTH SCIENCE ATMOSPHERE ATMOSPHERIC TEMPERATURE SURFACE TEMPERATURE EARTH SCIENCE ATMOSPHERE ATMOSPHERIC WATER VAPOR EVAPORATION EARTH SCIENCE ATMOSPHERE CLOUDS CLOUD PROPERTIES EARTH SCIENCE ATMOSPHERE PRECIPITATION PRECIPITATION AMOUNT EARTH SCIENCE BIOSPHERE ECOLOGICAL DYNAMICS ECOSYSTEM FUNCTIONS EARTH SCIENCE BIOSPHERE ECOSYSTEMS TERRESTRIAL ECOSYSTEMS EARTH SCIENCE BIOSPHERE VEGETATION BIOMASS EARTH SCIENCE BIOSPHERE VEGETATION CARBON EARTH SCIENCE BIOSPHERE VEGETATION DECIDUOUS VEGETATION EARTH SCIENCE BIOSPHERE VEGETATION DOMINANT SPECIES EARTH SCIENCE BIOSPHERE VEGETATION EVERGREEN VEGETATION EARTH SCIENCE BIOSPHERE VEGETATION VEGETATION INDEX EARTH SCIENCE BIOSPHERE VEGETATION VEGETATION SPECIES EARTH SCIENCE HUMAN DIMENSIONS ENVIRONMENTAL GOVERNANCE/MANAGEMENT LAND MANAGEMENT EARTH SCIENCE LAND SURFACE SOILS SOIL MOISTURE/WATER CONTENT EARTH SCIENCE LAND SURFACE SOILS SOIL TEXTURE EARTH SCIENCE LAND SURFACE TOPOGRAPHY TERRAIN ELEVATION AVHRR NOAA-14 EARTH SCIENCE CO2 GPP NEP NPP NDVI SOILS EOSDIS CARBON BIOMES FORESTS FLUXNET BIOMASS CLIMATE HUMIDITY WET DAYS ELEVATION VEGETATION CARBON SINK CARBON FLUX CLOUD COVER RESPIRATION EVAPORATION CARBON CYCLE TREE SPECIES STAND DENSITY FOREST BIOMES CARBON STOCKS CARBON SOURCE SOIL MOISTURE CARBON BUDGET PRECIPITATION SOIL CHEMISTRY WET DEPOSITION CARBON BALANCE BOREAL FORESTS DRY DEPOSITION BIOMETRIC FLUX AIR TEMPERATURE GLOBAL DATABASE SOLAR RADIATION LEAF AREA INDEX SOIL RESPIRATION TROPICAL FORESTS BIOMASS DYNAMICS VEGETATION INDEX ECOSYSTEM CARBON ECOSYSTEM TRAITS FOREST MANAGEMENT TEMPERATE FORESTS FOREST ECOSYSTEMS PRIMARY PRODUCTION ECOSYSTEM EXCHANGE LONGWAVE RADIATION ABOVEGROUND BIOMASS SOIL CLASSIFICATION BELOWGROUND BIOMASS ECOSYSTEM PRODUCTION ECOSYSTEM FUNCTIONING ECOPHYSIOLOGICAL FLUX ECOSYSTEM RESPIRATION AUTOTROPHIC RESPIRATION NET PRIMARY PRODUCTIVITY MICROMETEOROLOGICAL FLUX DISSOLVED ORGANIC CARBON HETEROTROPHIC RESPIRATION GROSS PRIMARY PRODUCTIVITY VOLATILE ORGANIC COMPOUNDS NET ECOSYSTEM PRODUCTIVITY MAXIMUM/MINIMUM TEMPERATURE GET DATA http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=949 VIEW RELATED INFORMATION https://daac.ornl.gov//VEGETATION/guides/forest_carbon_flux.html Global Forest Ecosystem Structure and Function Data For Carbon Balance Research USA/NASA ENGLISH GCMD CEOS IDN DIF VERSION 9.0